Just looked it up and some strange catfish/ sturgeon guide is on YouTube talking about it lol.
LOL! The video pretty much explained it.
A couple years ago I noticed my guide boat insurance stated that I must be wearing the kill tether while moving to be covered.
I’m not exactly 100% on wearing one so I looked around to see what was out there. Checked into Autotether and after using them, have been sold on them.
The only problem I’ve had is forgetting the fw has one on and when she walks away from the boat. Her’s doesn’t kill the engine but it makes a lot of noise once 150ish feet away from the boat. LOL!